Nansha District

In 1959, the Xisha Islands, Nansha Islands, Zhongsha Islands office was established, under the jurisdiction of Hainan Administrative Region.

In 1988, the Xisha Islands, Nansha Islands and Zhongsha Islands offices were placed under the jurisdiction of the newly established Hainan Province.

On June 21, 2012, the Ministry of Civil Affairs announced that The State Council formally approved the abolition of Xisha Islands, Nansha Islands, Zhongsha Islands office, the establishment of prefecture-level Sansha City, Xisha Islands, Zhongsha Islands under the direct jurisdiction of Sansha City. ^[4]

On April 18, 2020, Ministry of Civil Affairs, People's Republic of China An announcement was issued to establish Nansha District in Sansha City, Hainan Province with the approval of The State Council. Sansha City Nansha District jurisdiction Nansha Islands Islands and reefs and their waters. ^[1]

Within the scope of the Nansha Islands, the Chinese mainland has permanent personnel on the islands and reefs, mainly seven namely Yeonggedo ( Fiery Cross Reef Larger), Mischief Island , Subi Island , Chigua Reef , Nangeng Reef , Dongmen Reef , Huayang Reef In addition to Anda Cay and Yoke reef There are simple tide watching stations on the reef, which are usually manned by one person to record hydrological and climatic changes.

Nansha District People's Government in Fiery Cross Reef . ^[1]

Zeng Mother sand It is the southernmost part of Chinese territory, 1500 kilometers north of Yulin Port on Hainan Island. The ridge of the reef is in a NW trend, 2385 meters long and 1380 meters wide, and covers an area of 2.12 square kilometers. Zengmu reef is a large reef body in the reef mound group on the nearby shelf. To the south of the reef lies a coral reef of 0.31 km ² with a shallowest point of 23.5 m. The Eight immortals Reef mound); 14 nautical miles to the southwest, another coral reef exists. The ground is dark sand Reef mound). These reef mounds are clearly demarcated from the outer shelf sediments. Zengmu Dark sand is located on the southern continental shelf of the South China Sea. It is located in the Zengmu depression zone in the geological structure division. ^[5] The geographical coordinates of the main reef (3°58 '20 "N, 112°16' 53" E) are composed of two parts: the core and the wing of the reef. On the basis of South China Sea Institute of Oceanology, Chinese Academy of Sciences From 1985 to 1986, the depth of the shallowest place investigated by Experimental Ship No. 3 was 17.5 meters, shaped like a spindle, and the reef ridge was in a NW trend with an area of 2.12km². The area of the in-situ dark sand is 0.31km², and the shallowest point is 23.8 meters. The depth of the sand is 34.7 meters at its shallowest point. ^[6]